Azuki Mashiba (真柴 あずき, Mashiba Azuki, real name: Naomi Sasaki [佐々木 直美], born March 20, 1964) is a Japanese actress, director, playwright, and screenwriter. She is from Iwakuni City, Yamaguchi Prefecture. She is a founder member of the theater group Caramel Box and is affiliated with Nappos United.